06.レイルノーツ（piano&strings cover）

Piano and strings cover, mid-tempo around BPM100, Reinterpret a melancholic Japanese electronic track into an acoustic arrangement, No vocals, no electronic sounds, Piano leads with delicate, flowing phrases and clear articulation, Strings replace digital layers with soft sustained notes and gentle harmonic support, Keep the mood introspective, elegant, and slightly tense, Use minor key harmony with smooth transitions, avoiding dramatic peaks, Rhythm is subtle and steady, without breakbeat elements, Let phrasing and spacing create movement, Arrangement remains restrained, gradually expanding slightly in the middle with fuller strings, then returning to a quiet, reflective ending, Overall tone is calm, melancholic, and refined, with soft dynamics and blended resonance